# USPS OAuth 2.0

**Canonical:** https://apis.io/apis/usps/oauth2/  
**Provider:** USPS — https://apis.io/providers/usps/  
**Base URL:** https://apis.usps.com/oauth2/v3  
**Documentation:** https://developers.usps.com/Oauth

USPS OAuth 2.0 is one of 5 APIs that [USPS](https://apis.io/providers/usps/) publishes on the [APIs.io](https://apis.io/) network. Tagged areas include Authentication. The published artifact set on APIs.io includes API documentation.

Token endpoint for OAuth 2.0 Client Credentials authentication used to authorize requests to all USPS API products.

## Machine-readable artifacts (3)

- **Documentation** — https://developers.usps.com/Oauth
- **GraphQL** — https://raw.githubusercontent.com/api-evangelist/usps/refs/heads/main/graphql/usps-graphql.md
- **APIsJSON** — https://raw.githubusercontent.com/api-evangelist/usps/refs/heads/main/apis.yml

## Other USPS APIs (4)

- [USPS Addresses API](https://apis.io/apis/usps/addresses/)
- [USPS Tracking API](https://apis.io/apis/usps/tracking/)
- [USPS Labels API](https://apis.io/apis/usps/labels/)
- [USPS Domestic Prices API](https://apis.io/apis/usps/prices/)

## Tags

Authentication

---

Profiled by [API Evangelist](https://apievangelist.com) and published on [APIs.io](https://apis.io/apis/usps/oauth2/). The API's provider profile, Kin Score and agent-readiness rating are at https://apis.io/providers/usps/.